i took the covers off my lights and it makes the fans work more effectively ie the air coming off the heat sink is cooler due to better flow and it is also a little quieter...not that they are noisy
i will follow a long...mine just went under onyx a few days ago.....
now i understand what the concerns people have with the lenses but my impression is that they give a good spread of light for the size of the actual lamp...
looking good captain, ozzieAi here following you across from the cooler led thread elsewhere...will have a lookthrough your grow...thanks for the heads up...